Effects of yttrium codoping on fluorescence lifetimes of Er3+ ions in SiO2–Al2O3 sol–gel glasses
Keywords: آلومینوسیلیکات ها; 78.55.m; 78.55.QrOptical spectroscopy; Optical properties; Luminescence; Aluminosilicates; Rare-earths in glasses; Sol–gel, aerogel and solution chemistry